AS3 p-code more RAbcDasm like

- get/setlocal_x renamed to get/setlocalx
- QName casing changed from Qname

Better increment/decrement detection, chained assignments.

libsrc/ffdec_lib/testdata/custom/abc/custom-0/Main.script.asasm

@@ -0,0 +1,49 @@
+script
+ sinit
+  refid "Main/init"
+  body
+   maxstack 2
+   localcount 1
+   initscopedepth 1
+   maxscopedepth 8
+   code
+    getlocal0
+    pushscope
+
+    getscopeobject      0
+    getlex              QName(PackageNamespace(""), "Object")
+    pushscope
+
+    getlex              QName(PackageNamespace("flash.events"), "EventDispatcher")
+    pushscope
+
+    getlex              QName(PackageNamespace("flash.display"), "DisplayObject")
+    pushscope
+
+    getlex              QName(PackageNamespace("flash.display"), "InteractiveObject")
+    pushscope
+
+    getlex              QName(PackageNamespace("flash.display"), "DisplayObjectContainer")
+    pushscope
+
+    getlex              QName(PackageNamespace("flash.display"), "Sprite")
+    pushscope
+
+    getlex              Multiname("Sprite", [PrivateNamespace(null, "Main"), PackageNamespace(""), PackageInternalNs(""), Namespace("http://adobe.com/AS3/2006/builtin"), PackageNamespace("tests"), PackageNamespace("flash.display")])
+    newclass            "Main"
+    popscope
+    popscope
+    popscope
+    popscope
+    popscope
+    popscope
+    initproperty        QName(PackageNamespace(""), "Main")
+
+    returnvoid
+   end ; code
+  end ; body
+ end ; method
+ trait class QName(PackageNamespace(""), "Main") slotid 1
+  #include "Main.class.asasm"
+ end ; trait
+end ; script